diff --git a/headers/private/kernel/defines.h b/headers/private/kernel/defines.h
index e00f43e8e8..4bf6e5189a 100755
--- a/headers/private/kernel/defines.h
+++ b/headers/private/kernel/defines.h
@@ -5,13 +5,6 @@
 #ifndef _SYS_DEFINES_H
 #define _SYS_DEFINES_H
 
-/* the following two are for filesystem paths and names */
-#define SYS_MAX_NAME_LEN      128
-#define SYS_MAX_PATH_LEN      512
-
-/* the following is for OS object names: semaphores, threads, regions, etc.. */
-#define SYS_MAX_OS_NAME_LEN   32
-
 #define SYS_THREAD_ARG_LENGTH_MAX 255
 #define SYS_THREAD_STRING_LENGTH_MAX 2048